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Review
. 2023 Mar 27:14:100379.
doi: 10.1016/j.resplu.2023.100379. eCollection 2023 Jun.

Calcium during cardiac arrest: A systematic review

Cindy H Hsu  1 , Keith Couper  2 , Tyler Nix  3 , Ian Drennan  4 , Joshua Reynolds  5 , Monica Kleinman  6 , Katherine M Berg  7 ; Advanced Life Support and Paediatric Life Support Task Forces at the International Liaison Committee on Resuscitation (ILCOR)
Affiliations
Review

Calcium during cardiac arrest: A systematic review

Cindy H Hsu et al. Resusc Plus. .

Abstract

Aim: To perform a systematic review of administration of calcium compared to no calcium during cardiac arrest.

Methods: The search included Medline (PubMed), Embase, Cochrane, Web of Science, and CINAHL Plus and was conducted on September 30, 2022. The population included adults and children in any setting with cardiac arrest. The outcomes included return of spontaneous circulation, survival, survival with favourable neurologic outcome to hospital discharge and 30 days or longer, and quality of life outcome. Cochrane Risk of Bias 2 and ROBINS-I were performed to assess risk of bias for controlled and observational studies, respectively.

Results: The systematic review identified 4 studies on 3 randomised controlled trials on 554 adult out-of-hospital cardiac arrest (OHCA) patients, 8 observational studies on 2,731 adult cardiac arrest patients, and 3 observational studies on 17,449 paediatric in-hospital cardiac arrest (IHCA) patients. The randomised controlled and observational studies showed that routine calcium administration during cardiac arrest did not improve the outcome of adult OHCA or IHCA or paediatric IHCA. The risk of bias for the adult trials was low for one recent trial and high for two earlier trials, with randomization as the primary source of bias. The risk of bias for the individual observational studies was assessed to be critical due to confounding. The certainty of evidence was assessed to be moderate for adult OHCA and low for adult and paediatric IHCA. Heterogeneity across studies precluded any meaningful meta-analyses.

Conclusions: This systematic review found no evidence that routine calcium administration improves the outcomes of cardiac arrest in adults or children.PROSPERO Registration: CRD42022349641.

Keywords: Advanced Life Support; Basic Life Support; Calcium; Cardiac Arrest; ILCOR; Systematic Review.

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Conflict of interest statement

Dr. Couper is an Associate Editor of Resuscitation Plus. Drs. Hsu and Berg are Editorial Board Members of Resuscitation Plus. None of the authors have any financial conflicts of interests.

Figures

Fig. 1
Fig. 1
PRISMA Diagram, Chart illustrating the flow of articles. Of 1939 titles and abstracts, 36 full-text articles were assessed for eligibility, and 15 articles were included in the review.
See this image and copyright information in PMC

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